When solving an equation with two variables, replace the variables with the values given and then solve the now variable-free equation. (Remember order of operations, PEMDAS, Parentheses, Exponents, Multiplication/Division, Addition/Subtraction.)
Solve a + 4a = -8a + 8y + 1 for a in terms of y.
| -6y - 1 | |
| \(\frac{4}{9}\)y + \(\frac{1}{9}\) | |
| -5\(\frac{2}{3}\)y - \(\frac{2}{3}\) | |
| 6y - 2 |